Display screen or portion thereof with graphical user interface for managing diabetes



The FIGURE is a front view of a display screen or portion thereof with graphical user for managing diabetes interface showing our new design.

The broken lines in the FIGURE illustrate a display screen or portion thereof and form no part of the claimed design. The broken lines illustrate portions of the graphical user interface and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface for managing diabetes, as shown and described. 